To make the Pound Cake:
Preheat your oven to 325 degrees.
Combine the flour, baking powder, and salt and sit to the side. Then, using a hand or stand mixer, beat the butter and shortening together until combined.
Then slowly add in the granulated sugar and then the brown sugar. Mix on medium speed until light and fluffy (approximately 5 minutes).
Mix in the vanilla flavoring.
Add the eggs to the bowl one at a time, mixing well after each addition before adding the next egg.
Mix in the flour 1 c at a time, alternating with the buttermilk, beginning and ending with the flour.
Spray a 12-cup bundt pan with baking spray.
Pour the batter into the pan and spread it evenly. Bake the pound cake for about an hour and 15 minutes.
The cake is done once a toothpick inserted in the center of the cake comes out clean.
Remove the cake from the oven and allow it to cool for 20 minutes before removing it from the pan.
To make the icing:
Heat a large saucepan to medium heat.
Add the brown sugar, butter, salt, and condensed milk to the pan.
Simmer for approximately 5 minutes, stirring frequently.
Remove it from the heat and add the vanilla flavoring.
Pour the icing over the cake as desired. Allow the icing to set, then serve and enjoy!